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Scientists have discovered gold deposits in the leaves of eucalyptus trees in Australia—meaning your grandparents have been wrong this whole time. The gold pieces, which can only be detected with a metal-tracing X-ray, are sparse: “If you had 500 eucalyptus trees growing over a gold deposit, they would only have enough gold in there to make a wedding ring,” said study leader Mel Lintern. The researchers stated that it was the first time gold has been found naturally in a living thing.